Ralph Caraveo deckarep

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~~(This only seems to be available in the Beta channel at the moment)~~

From your desktop, click your profile picture in the top right.
Select Preferences from the menu.
Click Sidebar in the left-side column.
Check or uncheck the boxes next to Show profile photos next to DMs.

ARMlite simulator

The ARMlite simulator is a web-based simulator of a 32-bit 'ARM-like' processor and Instruction Set Architecture (ISA), developed by Peter Higginson and Richard Pawson for teaching Computer Science (CS) principles and Assembly Language. It is targetted particularly towards the AQA A-level computing syllabus. It is exceptionally user-friendly and fast, and great fun to experiment with!

Free online student textbook on the topic:
[1] Richard Pawson (with Peter Higginson), Computer Science from the Metal Up - Assembly Language Programming, v1.0.0, 2020
https://peterhigginson.co.uk/ARMlite/Assembly%20Language%20-%20Student%20version.pdf

Online simulator for the ARMlite ISA here:
https://www.peterhigginson.co.uk/ARMlite/

Tech Links

Compilers, Interpreters, Language Design, etc.

x64 NASM cheat sheet

Registers

	64 bit	32 bit	16 bit	8 bit
A (accumulator)	`RAX`	`EAX`	`AX`	`AL`
B (base, addressing)	`RBX`	`EBX`	`BX`	`BL`
C (counter, iterations)	`RCX`	`ECX`	`CX`	`CL`
D (data)	`RDX`	`EDX`	`DX`	`DL`

	%{
	#include <stdio.h>
	#include "parser.h"
	%}

	%%

	[ \r\n\t]* { continue; /* Skip blanks. */ }
	[0-9]+ { sscanf(yytext, "%d", &yylval->value);
	return TOKEN_NUMBER; }

	test "benchmark" {
	var timer = try std.time.Timer.start();
	const start = timer.lap();
	var i: usize = 0;
	var hash: usize = 0;
	while (i < 1000000) : (i += 1) {
	const src = "++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.";
	var output: [100]u8 = undefined;
	var bf: BrainFuckInterpreter = undefined;
	bf.init(src, "", &output, 500);

	package main

	import (
	"flag"
	"image"
	"image/color"
	"time"

	"github.com/peterhellberg/gfx"
	)

	const JsonString = struct {
	value: []const u8,
	};
	const JsonNumber = struct {
	value: f64,
	};
	const JsonObject = struct {
	const Property = struct {
	name: []const u8,
	value: JsonValue,

	import os
	import math
	import strutils
	import strformat

	import nimgl/opengl
	import nimgl/glfw
	import nimgl/imgui
	import nimgl/imgui/impl_opengl
	import nimgl/imgui/impl_glfw

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"